A wind power generating cabin multiple heat dissipation device and method thereof

Abstract

The application discloses a kind of wind power generation's cabin multiple heat dissipation device and method thereof, it is related to wind power generation field, including casing, the left end of the casing is connected with fairing, the inside rotation of the casing is connected with gear box near fairing, the rod of the fairing is connected in gear box inside, the side of gear box is connected with support cylinder, the inside of casing is equipped with bottom plate, the upper surface of bottom plate is equipped with electrical equipment, the small hole side of conical ring is connected with straight pipe, and straight pipe is connected in heat dissipation fin inside, heat dissipation fin is fixed around in the surface of casing, and heat dissipation fin is fixed with multiple groups.The wind power generation's cabin multiple heat dissipation device and method thereof, air is sent to the inside of casing from shunt pipe and ventilation hose, then from air vent, realizes the cold and hot exchange of gas, by driving connecting block positioning, natural wind that ventilation hose blows can be blown to specified position, realizes the accurate heat dissipation of equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation, in particular to a wind power generation nacelle multi-heat dissipation device and method thereof. BACKGROUND

[0002] Wind power generation is a clean energy that converts wind energy into electrical energy. A wind turbine is composed of a wind blade, a hub, a nacelle, a tower and a base. The nacelle is the core component integration space of the wind turbine, which contains gearboxes, generators, converters, control systems and other key equipment. The equipment inside the nacelle generates a large amount of heat, which needs to be dissipated in time through a heat dissipation device to ensure efficient operation of the equipment. Multi-heat dissipation refers to the combination of two or more different principles or forms of heat dissipation methods to form a synergistic heat dissipation effect, such as the combination of air cooling, liquid cooling, phase change heat dissipation and heat pipe heat dissipation.

[0003] However, the current nacelle heat dissipation still has some deficiencies, such as inconsistent internal structure heat dissipation effect, which reduces the heat dissipation effect.

[0004] In order to overcome the problem of insufficient heat dissipation effect, the existing technology (publication number: CN219045448U) discloses a nacelle heat dissipation assembly for wind power generation. The dehumidification assembly is arranged at the right end of the nacelle, which dehumidifies the moisture in the external air through the dehumidification screen cylinder. The dehumidified air is filtered through the dust removal filter screen to filter the dust in the air, so that the filtered air is introduced into the nacelle through the air outlet, thereby avoiding the entry of moisture into the nacelle and causing short circuit of the electronic components inside the nacelle, thereby improving the working efficiency. The heat dissipation assembly is arranged at the bottom end of the nacelle, which indirectly opens the heat dissipation hole through the hydraulic telescopic rod while making the air blower exhaust the hot air inside the nacelle through the heat dissipation hole, so that the gas can flow inside the nacelle, thereby improving the heat dissipation effect.

[0005] However, the current nacelle heat dissipation assembly still has some deficiencies. In the above-mentioned document, the nacelle is cooled by the air blower. This heat dissipation structure has limited effect in hot weather, and in summer, not only the equipment but also the nacelle shell will heat up. Therefore, the existing structure needs to be improved. SUMMARY

[0006] The present application aims to provide a wind power generation nacelle multi-heat dissipation device and method thereof to solve the problem of insufficient heat dissipation effect of the heat dissipation device and poor heat dissipation effect in some positions of the device in the background art, which affects the stable operation of the equipment.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a kind of wind power generation cabin multiple heat dissipation device and method thereof, including shell, the left end of the shell is connected with fairing, the inside of the shell is rotatably connected with gear box near fairing, the rod of the fairing is connected in the inside of gear box, the side of the gear box is connected with support cylinder, the inside of the shell is installed with bottom plate, the upper surface of the bottom plate is installed with electrical equipment:

[0008] The electrical equipment is composed of control cabinet, yaw motor and current transformer, the side of the shell is fixed with conical ring, the inside of the conical ring is connected with cover plate mechanism, the cover plate mechanism is composed of electric telescopic rod, guide rod and cover plate, and cover plate is slid through in the inside of conical ring, and electric telescopic rod is installed in the inside of shell, multiple small holes and three large holes are formed in the inside of the conical ring, L-shaped pipe is connected in the inside of large hole, the side of the shell is provided with heat dissipation mechanism for improving the heat dissipation effect of cabin.

[0009] Further, the heat dissipation mechanism further includes filter plate connected to one end of the L-shaped pipe, and the other end of the L-shaped pipe is connected in the inside of the shell, the bottom end of the L-shaped pipe is connected with shunt pipe and ventilation hose, the inside of the ventilation opening is installed with heat dissipation fan one, and the inside of the ventilation opening is connected with filter screen, and the side of the shell close to the ventilation opening is connected with closing mechanism, the closing mechanism includes motor and closing plate, the motor is installed in the inside of the shell, and the cover plate is rotatably connected to the outside of the shell by the output end of the motor.

[0010] Further, the small holes of the conical ring are connected with straight pipes on the side, and the straight pipes are connected to the inside of the heat dissipation fins, the heat dissipation fins are fixed around the surface of the shell, and the heat dissipation fins are fixed with multiple groups.

[0011] Further, the inside of the shell is further provided with positioning mechanism for improving the heat dissipation effect, the positioning mechanism includes connecting block connected to the end of the ventilation hose, the side of the connecting block is fixed with fixed rod, the inside of the fixed rod is slidably connected with slide rod.

[0012] Further, the side of the slide rod away from the fixed rod is symmetrically installed with magnet, multiple clamping grooves are symmetrically formed on the two sides of the fixed rod, and multiple expansion grooves are symmetrically formed on the inside of the slide rod.

[0013] Further, the inside of the expansion groove is slidably connected with clamping block, the spring is connected between the clamping block and the expansion groove, and the clamping block is clamped with the clamping groove.

[0014] Further, the bottom plate top is provided with a liquid cooling mechanism for realizing double heat dissipation of the nacelle, the liquid cooling mechanism comprises two heat absorption plates symmetrically connected to the upper surface of the bottom plate, the inside of each heat absorption plate is connected with a flow guide pipe penetratingly, the flow guide pipe has two ports, the bottom plate is connected with a cooling box, a branch pipe one is connected penetratingly between the ports of the two flow guide pipes, the branch pipe one is located at one side of the cooling box and is connected with the cooling box penetratingly, the bottom plate is installed with a water pump, and the water pump is located at the other side of the cooling box.

[0015] Further, the water outlet of the water pump has two, and the two water outlets are connected with branch pipes two, the branch pipes two are connected penetratingly at the ports of the flow guide pipes away from the branch pipe one, and the water inlet of the water pump is connected with the cooling box side through a water inlet pipe.

[0016] Further, the upper surface of the cooling box is connected with a heat conduction plate, the top of the heat conduction plate is symmetrically connected with a semiconductor, the top of the semiconductor is connected with a ventilating fan, and the heat conduction plate, the semiconductor and the ventilating fan are located in the inside of the bottom plate.

[0017] The use method of the nacelle multiple heat dissipation device for wind power generation has the characteristics that the use method comprises the following steps:

[0018] S1: start the cover plate mechanism, push the cover plate to move upwards along the guide rod by the electric telescopic rod to expose the large hole of the conical ring; then start the closing mechanism, rotate the closing plate away from the air vent by the motor, start the heat dissipation fan one to discharge high-temperature gas, and realize cold and heat exchange by using high-altitude natural wind;

[0019] S2: press the clamping block to make it separate from the clamping groove, stretch the slide rod to a specified height, then the clamping block is reset into another set of clamping grooves under the action of the spring, move the fixed rod to drive the connecting block to adjust the position of the air vent hose port, and use the magnet to adsorb the slide rod to the bottom plate to realize precise heat dissipation;

[0020] S3: start the water pump when the temperature is high, the cooling liquid circulates through the water inlet pipe, the branch pipe two, the flow guide pipe, the branch pipe one, absorbs the heat of the equipment through the heat absorption plate, starts the semiconductor and the ventilating fan, the semiconductor reduces the temperature of the cooling liquid through the heat conduction plate, and the ventilating fan disperses the residual heat to improve the heat dissipation efficiency in combination with air cooling and liquid cooling.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. The nacelle multiple heat dissipation device for wind power generation and the method thereof, air is transported from the shunt pipe and the air vent hose to the inside of the casing and then flows out from the air vent, realizing cold and heat exchange of the gas, the natural wind blown by the air vent hose can blow to the specified position by driving the connecting block to position, and precise heat dissipation of the equipment is realized.

[0023] 2. The cone-shaped ring is arranged, the shape of the cone-shaped ring can better block the air passing through the surface of the shell, so that the air can flow into the L-shaped pipe and the straight pipe faster, and the heat dissipation efficiency can be improved.

[0024] 3. The cover plate mechanism and the closing mechanism are arranged, the cover plate of the cover plate mechanism and the closing plate of the closing mechanism can seal the inside of the shell, prevent more dust or moisture from entering the inside of the shell in daily state, and effectively guarantee the efficient operation of the equipment in the inside of the shell.

[0025] 4. The magnet is arranged, the magnet can position the connecting block, the position of the connecting block can be operated at will, so that the position of the heat generation of the equipment can be precisely cooled, and the heat dissipation effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole right view of the structure of the schematic diagram;

[0027] Figure 2 It is a whole left view of the structure of the schematic diagram;

[0028] Figure 3 It is a split structure of the schematic diagram of the cone-shaped ring;

[0029] Figure 4 It is an enlarged structure of the schematic diagram of the electric appliance;

[0030] Figure 5 It is an enlarged structure of the schematic diagram of the heat absorbing plate;

[0031] Figure 6 It is an enlarged structure of the schematic diagram of the closing mechanism;

[0032] Figure 7 It is an enlarged structure of the schematic diagram of the L-shaped pipe;

[0033] Figure 8 It is an enlarged structure of the schematic diagram of the heat dissipation fin;

[0034] Figure 9 It is an enlarged structure of the schematic diagram of the ventilation hose;

[0035] Figure 10 It is an enlarged structure of the schematic diagram of the sliding rod;

[0036] Figure 11 It is an enlarged structure of the schematic diagram of the Figure 10 A part of the schematic diagram of the enlarged structure;

[0037] Figure 12 It is an enlarged structure of the schematic diagram of the cooling box;

[0038] Figure 13 For the invention of the guide pipe amplification stereo structure schematic diagram;

[0039] Figure 14 For the invention of the semiconductor amplification stereo structure schematic diagram.

[0040] In the figure: 1, the casing; 2, the fairing; 3, the gear box; 4, support cylinder; 5, electrical equipment; 6, bottom plate; 101, conical ring; 102, L-shaped tube; 103, filter plate; 104, shunt tube; 105, ventilation hose; 106, straight tube; 107, heat dissipation fin; 108, ventilation opening; 109, heat dissipation fan; 110, cover plate mechanism; 111, closing mechanism; 201, connecting block; 202, fixed rod; 203, slide rod; 204, magnet; 205, clamping groove; 206, expansion groove; 207, clamping block; 301, heat absorbing plate; 302, guide pipe; 303, branch pipe; 304, water pump; 305, branch pipe; 306, water inlet pipe; 308, heat conducting plate; 309, semiconductor; 310, cooling box. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0042] Embodiment one, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8The technical scheme is shown, and the present application provides the following technical scheme: in order to solve the problem of insufficient heat dissipation effect of the heat dissipation device, the heat dissipation mechanism is disclosed: including the casing 1, the fairing 2 is connected to the left end of the casing 1, the gear box 3 is rotatably connected to the inside of the fairing 2, the rod of the fairing 2 penetrates through the inside of the gear box 3, the support cylinder 4 is connected to the side of the gear box 3, the bottom plate 6 is installed in the inside of the casing 1, the electric appliance 5 is installed on the upper surface of the bottom plate 6: the electric appliance 5 is composed of the control cabinet, the yaw motor and the current transformer, the conical ring 101 is fixed on the side of the casing 1, the cover plate mechanism 110 is connected in the inside of the conical ring 101, the cover plate mechanism 110 is composed of the electric telescopic rod, the guide rod and the cover plate, and the cover plate penetrates through and slides in the inside of the conical ring 101, and the electric telescopic rod is installed in the inside of the casing 1, a plurality of small holes and three large holes are penetrated and arranged in the inside of the conical ring 101, the L-shaped pipe 102 is penetrated and connected in the inside of the large hole, the casing 1 is provided with the heat dissipation mechanism for improving the heat dissipation effect of the engine room, the heat dissipation mechanism further comprises the filter plate 103 connected to one end of the L-shaped pipe 102, and the other end of the L-shaped pipe 102 is penetrated and connected in the inside of the casing 1, the shunt pipe 104 and the ventilation hose 105 are penetrated and connected to the bottom end of the L-shaped pipe 102, the ventilation opening 108 is penetrated and arranged in the inside of the casing 1 away from the fairing 2, the heat dissipation fan one 109 is installed in the inside of the ventilation opening 108, and the filter screen is connected to the inside of the ventilation opening 108, and the closing mechanism 111 is connected to the side of the casing 1 close to the ventilation opening 108, the closing mechanism 111 comprises the motor and the closing plate, the motor is installed in the inside of the casing 1, the cover plate is rotatably connected to the outside of the casing 1 through the output end of the motor, the straight pipe 106 is penetrated and connected to the side of the small hole of the conical ring 101, and the straight pipe 106 is connected to the inside of the heat dissipation fin 107, the heat dissipation fin 107 is fixedly arranged on the surface of the casing 1, and the heat dissipation fin 107 is fixed with a plurality of groups.

[0043] When the wind power generation is used, the fairing 2 will rotate under the action of natural wind, converting wind energy into mechanical energy, and then changing the rotating speed through the gear box 3 to meet the basic requirements of power generation. The control cabinet of the electrical equipment 5 can reasonably control the various data that are changing, such as wind speed, wind direction, temperature, current, etc. The current transformer of the electrical equipment 5 converts the generated alternating current into direct current, and then delivers it to the designated position for storage through the line inside the support cylinder 4. The equipment inside the casing 1 will generate high temperature during operation. First, start the cover plate mechanism 110. The cover plate mechanism 110 can push the cover plate upward through the electric telescopic rod. When the cover plate moves upward, it can slide inside the conical ring 101 through the guide rod. When the cover plate slides to a certain height, the large holes of the three conical rings 101 will be exposed. Then start the closing mechanism 111. The closing mechanism 111 can drive the closing plate to rotate out of the side of the ventilation opening 108 through the motor. At this time, the air inside the casing 1 can circulate well. The cover plate and the closing plate can prevent moisture from entering the inside of the casing 1 when the weather is bad. Then the heat dissipation fan 109 can be started to discharge the high-temperature gas inside the casing 1 from the ventilation opening 108. And the casing 1 is in a high-altitude position, and the wind is usually strong. The natural wind will pass along the side of the fairing 2 to the inside of the conical ring 101. The wind can pass through the small holes and large holes of the conical ring 101. The natural wind will be guided and the flow rate will be increased. The natural wind will flow to the straight pipe 106 through the small holes. The wind will be guided and pass through the heat dissipation fins 107 when it flows quickly from the straight pipe 106. The temperature inside the casing 1 will increase and the sunlight will shine, and the surface of the casing 1 will have a high temperature. The temperature will be transferred to the heat dissipation fins 107 for heat dissipation. The fast-flowing wind will speed up the heat dissipation of the heat dissipation fins 107, thereby realizing efficient heat dissipation of the engine room. When the wind passes through the large holes of the conical ring 101, it will be delivered to the shunt pipe 104 and the ventilation hose 105 inside the L-shaped pipe 102, and finally delivered to the inside of the casing 1. In the process, the filter plate 103 can block the dust flowing through it. The air delivered from the shunt pipe 104 and the ventilation hose 105 to the inside of the casing 1 will flow out from the ventilation opening 108, realizing the cold and hot exchange of the gas, and further improving the heat dissipation effect of the engine room.

[0044] Embodiment two, as Figure 7 , Figure 9 , Figure 10 and Figure 11The technical scheme is shown, and the application provides the following technical scheme: in order to solve the problem that the heat dissipation effect of some positions of the device is poor, affecting the stable operation of the equipment, the positioning mechanism is disclosed: the inside of the shell 1 is further provided with a positioning mechanism for improving the heat dissipation effect, the positioning mechanism comprises a connecting block 201 connected to the end of the ventilation hose 105, a fixed rod 202 fixed on the side surface of the connecting block 201, a sliding rod 203 slidingly connected in the inside of the fixed rod 202, a magnet 204 symmetrically installed on the side surface of the sliding rod 203 away from the fixed rod 202, a plurality of clamping grooves 205 symmetrically formed on the two sides of the fixed rod 202, a plurality of expansion grooves 206 symmetrically formed on the inside of the sliding rod 203, a clamping block 207 slidingly connected in the inside of the expansion groove 206, a spring connected between the clamping block 207 and the expansion groove 206, and the clamping block 207 and the clamping groove 205 are clamped and connected.

[0045] Some positions of the equipment prone to heat may be relatively biased, and the gas is not ventilated, which will affect the heat dissipation effect of the equipment, therefore, the clamping block 207 can be pressed to slide through the expansion groove 206 and the clamping groove 205, the clamping block 207 can extrude the spring when sliding, the sliding rod 203 and the fixed rod 202 can be stretched when the clamping block 207 is extruded out of the inside of the clamping groove 205, the sliding rod 203 can slide in the inside of the fixed rod 202 when the sliding rod 203 is stretched, the clamping block 207 can be moved to the side surface of another group of clamping grooves 205 after the sliding rod 203 is stretched to a specified position, the clamping block 207 can be reset by the elastic force of the spring and clamped and positioned with the clamping groove 205, the clamping block 207 can drive the sliding rod 203 and the fixed rod 202 to be positioned when positioned, at this time, the height of the sliding rod 203 and the clamping groove 205 has been changed, the fixed rod 202 can be moved after the height is changed, the connecting block 201 can be moved when the fixed rod 202 is moved, the ventilation hose 105 can be moved by the connecting block 201 when the connecting block 201 is moved, the ventilation hose 105 can be stretched and turned by following the connecting block 201, the port of the ventilation hose 105 can be moved to the position where the equipment needs to be specified to dissipate heat by the connecting block 201, the sliding rod 203 is adsorbed on the upper surface of the bottom plate 6 by the magnet 204, the connecting block 201 can be positioned by the magnet 204 when the sliding rod 203 is positioned, the natural wind blown by the ventilation hose 105 can blow to the specified position, the precise heat dissipation of the equipment is realized, and the heat dissipation effect is more obvious.

[0046] Embodiment three, as Figure 4 , Figure 5 , Figure 12 , Figure 13 and Figure 14The technical scheme shown in the application provides the following technical scheme: in order to solve the problem of low wind cooling heat dissipation efficiency of the heat dissipation device, on the basis of embodiment one, a liquid cooling mechanism is disclosed, the bottom plate 6 is provided with a liquid cooling mechanism for realizing double heat dissipation of the engine room, the liquid cooling mechanism comprises two heat absorption plates 301 symmetrically connected to the upper surface of the bottom plate 6, a flow guide pipe 302 is connected through the inside of each heat absorption plate 301, the flow guide pipe 302 has two ports, a cooling box 310 is connected to the bottom of the bottom plate 6, a branch pipe one 303 is connected through between the ports of the two flow guide pipes 302, the branch pipe one 303 is located on one side of the cooling box 310, and the branch pipe one 303 and the cooling box 310 are connected through, a water pump 304 is installed at the bottom of the bottom plate 6, the water pump 304 is located on the other side of the cooling box 310, the water outlet of the water pump 304 has two, and each water outlet is connected with a branch pipe two 305, the branch pipe two 305 is connected through at the port of the flow guide pipe 302 away from the branch pipe one 303, the water inlet of the water pump 304 is connected through on the side of the cooling box 310 through a water inlet pipe 306, a heat conduction plate 308 is connected to the upper surface of the cooling box 310, a semiconductor 309 is symmetrically connected to the top of the heat conduction plate 308, a ventilating fan is connected to the top of the semiconductor 309, and the heat conduction plate 308, the semiconductor 309 and the ventilating fan are located in the inside of the bottom plate 6.

[0047] When the weather is hot, the heat dissipation effect of natural wind will decrease, and some high-heat devices need to be installed in the position close to the heat absorption plate 301 in advance, when the temperature is high, the water pump 304 can be started, the water pump 304 can extract the cooling liquid in the cooling box 310 through the water inlet pipe 306 when started, the water pump 304 delivers the cooling liquid into the two branch pipe twos 305, the branch pipe two 305 delivers the cooling liquid into the flow guide pipe 302, the flow guide pipe 302 delivers the cooling liquid into the cooling box 310 through the branch pipe one 303, and the circulation of the cooling liquid is realized, when the cooling liquid is delivered through the flow guide pipe 302, the heat of the heat absorption plate 301 can be absorbed, and the heat absorption plate 301 can absorb the heat of the side running equipment, so that the liquid heat dissipation effect of the generator can be realized, the heat of the cooling liquid increases after being used for many times, the increased heat can be absorbed by the heat conduction plate 308, in order to improve the efficiency of liquid heat dissipation, the semiconductor 309 and the ventilating fan can be started, the semiconductor 309 can produce a refrigeration effect to reduce the temperature of the heat conduction plate 308, the heat conduction plate 308 can cool the cooling liquid in the cooling box 310, and the ventilating fan can quickly expel and volatilize the heat emitted by the semiconductor 309, so as to guarantee the operation efficiency of the semiconductor 309, the device realizes two heat dissipation modes of air cooling and liquid cooling, and the heat dissipation effect is guaranteed.

[0048] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wind power generating cabin multiple heat dissipation device, comprising a casing (1), a fairing (2) is connected to the left end of the casing (1), a gear box (3) is rotatably connected to the inside of the casing (1) close to the fairing (2), a rod of the fairing (2) penetrates through and is connected inside the gear box (3), a supporting cylinder (4) is connected to the side of the gear box (3), a bottom plate (6) is installed inside the casing (1), and an electrical equipment (5) is installed on the upper surface of the bottom plate (6), characterized in that: the electrical equipment (5) is composed of a control cabinet, a yaw motor and a converter, a conical ring (101) is fixed to the side of the casing (1), a cover plate mechanism (110) is connected inside the conical ring (101), the cover plate mechanism (110) is composed of an electric telescopic rod, a guide rod and a cover plate, the cover plate penetrates through and slides inside the conical ring (101), the electric telescopic rod is installed inside the casing (1), a plurality of small holes and three large holes are provided through the inside of the conical ring (101), an L-shaped pipe (102) is connected through the inside of the large hole, a heat dissipation mechanism for improving the heat dissipation effect of the cabin is arranged on the side of the casing (1), the heat dissipation mechanism further comprises a filter plate (103) connected to one end of the L-shaped pipe (102), the other end of the L-shaped pipe (102) penetrates through and is connected inside the casing (1), and a shunt pipe (104) and a ventilation hose (105) are connected through the bottom end of the L-shaped pipe (102), a ventilation opening (108) is provided through the inside of the casing (1) away from the fairing (2); a heat dissipation fan (109) is installed inside the ventilation opening (108), a filter screen is connected to the inside of the ventilation opening (108), a closing mechanism (111) is connected to the side of the casing (1) close to the ventilation opening (108), the closing mechanism (111) comprises a motor and a closing plate, the motor is installed inside the casing (1), the cover plate is rotatably connected to the outside of the casing (1) through the output end of the motor, a straight pipe (106) is connected through the side of the small hole of the conical ring (101), the straight pipe (106) is connected to the inside of a heat dissipation fin (107), the heat dissipation fin (107) is fixed around the surface of the casing (1), and a plurality of groups of heat dissipation fins (107) are fixed, and a positioning mechanism for improving the heat dissipation effect is further arranged inside the casing (1), the positioning mechanism comprises a connecting block (201) connected to the end of the ventilation hose (105), a fixed rod (202) is fixed to the side of the connecting block (201), and a sliding rod (203) is slidably connected through the inside of the fixed rod (202).

2. A multi-heat dissipation device for a nacelle of a wind power generator according to claim 1, characterized in that: magnets (204) are symmetrically installed on the side of the sliding rod (203) away from the fixed rod (202), a plurality of clamping grooves (205) are symmetrically provided on the two sides of the fixed rod (202), and expansion grooves (206) are symmetrically provided on the inside of the sliding rod (203).

3. A multi-heat-dissipation device for a nacelle of a wind power generator according to claim 2, characterized in that: a clamping block (207) is slidably connected through the inside of the expansion groove (206), springs are connected between the clamping block (207) and the expansion groove (206), and the clamping block (207) and the clamping groove (205) are clampedly connected.

4. The multi-heat-dissipation device for the nacelle of a wind power generator according to claim 1, characterized in that: The bottom plate (6) is provided with a liquid cooling mechanism on the top for realizing double heat dissipation of the cabin, the liquid cooling mechanism comprises two heat absorption plates (301) symmetrically connected to the upper surface of the bottom plate (6), the heat absorption plates (301) are both provided with a flow guide pipe (302) penetratingly connected inside, and the flow guide pipe (302) has two ports, the bottom plate (6) is connected with a cooling box (310), the two ports of the flow guide pipes (302) are penetratingly connected with a branch pipe (303), the branch pipe (303) is located on one side of the cooling box (310), and the branch pipe (303) and the cooling box (310) are penetratingly connected, and the bottom plate (6) is provided with a water pump (304) installed on the bottom, and the water pump (304) is located on the other side of the cooling box (310).

5. A multi-heat-dissipation device for a nacelle of a wind power generator according to claim 4, characterized in that: The water outlet of the water pump (304) has two, and the two water outlets are both connected with a branch pipe (305), the branch pipe (305) is penetratingly connected at the port of the flow guide pipe (302) away from the branch pipe (303), and the water inlet of the water pump (304) is penetratingly connected on the side of the cooling box (310) through a water inlet pipe (306).

6. A multi-heat-dissipation device for a nacelle of a wind power generator according to claim 5, characterized in that: The upper surface of the cooling box (310) is attached with a heat conduction plate (308), the top of the heat conduction plate (308) is symmetrically connected with a semiconductor (309), the top of the semiconductor (309) is connected with a ventilation fan, and the heat conduction plate (308), the semiconductor (309) and the ventilation fan are all located inside the bottom plate (6).

7. A method for using the multiple heat dissipation device of a wind power generation nacelle according to claim 6, characterized in that: Comprise the following steps: S1: start the cover plate mechanism (110), push the cover plate along the guide rod by the electric telescopic rod, expose the large hole of the conical ring (101); then start the closing mechanism (111), rotate the closing plate away from the air vent (108) by the motor, start the cooling fan (109) to discharge high temperature gas, and realize cold and heat exchange by using high altitude natural wind; S2: press the clamping block (207) to make it separate from the clamping groove (205), stretch the slide rod (203) to the specified height, then the clamping block (207) is reset into another set of clamping grooves (205) under the action of the spring, move the fixed rod (202) to drive the connecting block (201) to adjust the port position of the ventilation hose (105), and use the magnet (204) to adsorb the slide rod (203) to the bottom plate (6), so as to realize accurate cooling; S3: start the water pump (304) when the temperature is high, the cooling liquid circulates through the water inlet pipe (306), the branch pipe (305), the flow guide pipe (302) and the branch pipe (303), absorbs the heat of the equipment through the heat absorption plate (301), starts the semiconductor (309) and the ventilation fan, the semiconductor (309) reduces the temperature of the cooling liquid through the heat conduction plate (308), and the ventilation fan disperses the residual heat, so as to improve the cooling efficiency by combining air cooling and liquid cooling.

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